US9580831B2 - Stainless steel pickling in an oxidizing, electrolytic acid bath - Google Patents
Stainless steel pickling in an oxidizing, electrolytic acid bath Download PDFInfo
- Publication number
- US9580831B2 US9580831B2 US13/627,022 US201213627022A US9580831B2 US 9580831 B2 US9580831 B2 US 9580831B2 US 201213627022 A US201213627022 A US 201213627022A US 9580831 B2 US9580831 B2 US 9580831B2
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- US
- United States
- Prior art keywords
- steel
- mixture
- hno
- concentration
- tub
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000005554 pickling Methods 0.000 title claims abstract description 55
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 52
- 239000010935 stainless steel Substances 0.000 title claims abstract description 35
- 239000002253 acid Substances 0.000 title abstract description 27
- 230000001590 oxidative effect Effects 0.000 title description 3
- 238000000034 method Methods 0.000 claims abstract description 127
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 73
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 73
- 239000000203 mixture Substances 0.000 claims abstract description 40
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000002184 metal Substances 0.000 claims abstract description 19
- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 239000007800 oxidant agent Substances 0.000 claims abstract description 18
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 67
- 229910000831 Steel Inorganic materials 0.000 claims description 39
- 239000010959 steel Substances 0.000 claims description 39
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 16
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 11
- 239000011790 ferrous sulphate Substances 0.000 claims description 11
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 11
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 10
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims description 7
- 150000002739 metals Chemical class 0.000 claims description 4
- 229910000963 austenitic stainless steel Inorganic materials 0.000 claims description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 85
- QPJSUIGXIBEQAC-UHFFFAOYSA-N n-(2,4-dichloro-5-propan-2-yloxyphenyl)acetamide Chemical compound CC(C)OC1=CC(NC(C)=O)=C(Cl)C=C1Cl QPJSUIGXIBEQAC-UHFFFAOYSA-N 0.000 description 73
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 33
- 229910001447 ferric ion Inorganic materials 0.000 description 33
- 150000007513 acids Chemical class 0.000 description 22
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 14
- 239000000126 substance Substances 0.000 description 11
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 10
- 229910052938 sodium sulfate Inorganic materials 0.000 description 10
- 239000007832 Na2SO4 Substances 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 239000011651 chromium Substances 0.000 description 7
- 239000010963 304 stainless steel Substances 0.000 description 6
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 6
- 239000010953 base metal Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000002203 pretreatment Methods 0.000 description 5
- 101150114468 TUB1 gene Proteins 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- 229910000619 316 stainless steel Inorganic materials 0.000 description 3
- -1 hydrofluoric acid Chemical class 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 235000021110 pickles Nutrition 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 229910001448 ferrous ion Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 238000010306 acid treatment Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000013000 roll bending Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
- C25F1/02—Pickling; Descaling
- C25F1/04—Pickling; Descaling in solution
- C25F1/06—Iron or steel
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0236—Cold rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
- C23G1/081—Iron or steel solutions containing H2SO4
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
- C23G1/085—Iron or steel solutions containing HNO3
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
- C23G1/086—Iron or steel solutions containing HF
Definitions
- the described process reduces the concentrations of acids, particularly HNO 3 and/or HF required without negative impact on production rates by using the additional pickling power of at least one electrode set having a least one cathode and at least one anode, an excess of an oxidizing agent such as H 2 O 2 .
- the excess of the oxidizing agent creates another oxidizing agent, and the power of the another oxidizing agent, such as Fe 2 (SO 4 ) 3 , acts to aggressively attack the rich oxide and thus release/lift the oxide from the base metal.
- the process allows for a reduction of total chemicals consumed in the pickling process from known pickling processes and for a reduction of nitric acid (HNO 3 ) and/or hydrofluoric acid (HF) over known pickling processes.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- ing And Chemical Polishing (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/627,022 US9580831B2 (en) | 2011-09-26 | 2012-09-26 | Stainless steel pickling in an oxidizing, electrolytic acid bath |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201161539259P | 2011-09-26 | 2011-09-26 | |
| US13/627,022 US9580831B2 (en) | 2011-09-26 | 2012-09-26 | Stainless steel pickling in an oxidizing, electrolytic acid bath |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| US20130074871A1 US20130074871A1 (en) | 2013-03-28 |
| US9580831B2 true US9580831B2 (en) | 2017-02-28 |
Family
ID=47046849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US13/627,022 Active 2034-08-28 US9580831B2 (en) | 2011-09-26 | 2012-09-26 | Stainless steel pickling in an oxidizing, electrolytic acid bath |
Country Status (20)
| Country | Link |
|---|---|
| US (1) | US9580831B2 (de) |
| EP (1) | EP2761063B1 (de) |
| JP (1) | JP5897717B2 (de) |
| KR (3) | KR20190009437A (de) |
| CN (1) | CN103906864B (de) |
| AU (1) | AU2012316187B2 (de) |
| BR (1) | BR112014007132A2 (de) |
| CA (1) | CA2849304C (de) |
| ES (1) | ES2605452T3 (de) |
| HR (1) | HRP20161598T1 (de) |
| HU (1) | HUE031817T2 (de) |
| MX (1) | MX355793B (de) |
| PL (1) | PL2761063T3 (de) |
| RS (1) | RS55232B1 (de) |
| RU (1) | RU2583500C2 (de) |
| SI (1) | SI2761063T1 (de) |
| TW (1) | TWI452181B (de) |
| UA (1) | UA107061C2 (de) |
| WO (1) | WO2013049103A1 (de) |
| ZA (1) | ZA201402871B (de) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| HUE031817T2 (en) | 2011-09-26 | 2017-08-28 | Ak Steel Properties Inc | Stainless steel etching in an oxidizing electrolytic acid bath |
| CN103820799B (zh) * | 2014-03-18 | 2016-06-29 | 中冶南方工程技术有限公司 | 热轧超级奥氏体不锈钢带钢的连续酸洗生产方法 |
| CN103820798B (zh) * | 2014-03-18 | 2016-06-01 | 中冶南方工程技术有限公司 | 热轧双相不锈钢带钢的连续酸洗生产方法 |
| CN103882456B (zh) * | 2014-03-18 | 2016-03-30 | 中冶南方工程技术有限公司 | 热轧436l超纯铁素体不锈钢带钢退火酸洗方法 |
| CN107653485A (zh) * | 2017-10-11 | 2018-02-02 | 徐州中泰能源科技有限公司 | 一种绿色环保的铁制品除锈方法 |
| BE1026907B1 (nl) * | 2018-12-20 | 2020-07-22 | Aperam Stainless Belgium | Werkwijze voor het produceren van op ten minste drie verschillende manieren afgewerkt roestvast plaatstaal |
| BE1026906B1 (nl) * | 2018-12-20 | 2020-07-22 | Aperam Stainless Belgium | Werkwijze voor het produceren van op ten minste drie verschillende manieren afgewerkt roestvast plaatstaal |
| KR102102608B1 (ko) * | 2019-12-20 | 2020-04-22 | 현대비앤지스틸 주식회사 | 고분자 연료전지 분리판용 스테인리스강 제조 방법 |
Citations (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2347742A (en) * | 1939-09-18 | 1944-05-02 | Rustless Iron & Steel Corp | Pickling process |
| US3043758A (en) * | 1958-12-23 | 1962-07-10 | Ruthner Othmar | Process of electrolytically pickling alloy steels |
| US3622478A (en) | 1960-11-14 | 1971-11-23 | Gen Electric | Continuous regeneration of ferric sulfate pickling bath |
| US4618379A (en) * | 1982-09-21 | 1986-10-21 | Roberto Bruno | Method for the continuous annealing of steel strips |
| US4711707A (en) | 1986-01-17 | 1987-12-08 | Agency Of Industrial Science & Technology | Method for removal of scale from hot rolled steel |
| US5175502A (en) * | 1990-09-14 | 1992-12-29 | Armco Steel Company, L.P. | Method and apparatus for determining acid concentration |
| RU1807098C (ru) | 1990-01-05 | 1993-04-07 | Филиал Всесоюзного научно-исследовательского и проектно-конструкторского института металлургического машиностроения им.А.И.Целикова, г.Славянск | Способ удалени окалины с поверхности плоского проката |
| EP0582121A1 (de) | 1992-08-06 | 1994-02-09 | Itb S.R.L. | Verfahren zum Beizen und Passivieren von rostfreiem Stahl ohne Verwendung von Salpetersäure |
| US5364549A (en) * | 1989-10-05 | 1994-11-15 | Interox Chemicals Limited | Hydrogen peroxide solutions |
| RU2085616C1 (ru) | 1990-07-27 | 1997-07-27 | Андритц-Патентфервальтунгс-Гезелльшафт мбХ | Способ травления высококачественной стали |
| WO1997043463A1 (en) | 1996-05-09 | 1997-11-20 | Henkel Kommanditgesellschaft Auf Aktien | Steel pickling process in which the oxidation of the ferrous ion formed is carried out electrolytically |
| US5743968A (en) * | 1997-03-20 | 1998-04-28 | Armco Inc. | Hydrogen peroxide pickling of stainless steel |
| RU2110618C1 (ru) | 1995-11-28 | 1998-05-10 | ЕКА Кемикалс АБ | Способ травления стали |
| US5879465A (en) * | 1996-12-20 | 1999-03-09 | Mckevitt; Patrick | Method and apparatus for descaling hot rolled stainless steel strip |
| WO1999032690A1 (en) | 1997-12-23 | 1999-07-01 | Henkel Corporation | Pickling process with at least two steps |
| US6068001A (en) | 1995-10-18 | 2000-05-30 | Novamax Itb S.R.L. | Process for stainless steel pickling and passivation without using nitric acid |
| US6250314B1 (en) * | 1998-07-15 | 2001-06-26 | Andritz-Patentverwaltungs-Gesellschaft M.B.H. | Process of pickling stainless steel |
| US6274027B1 (en) * | 1999-07-06 | 2001-08-14 | Sumitomo Metal Industries, Ltd | Method of descaling titanium material and descaled titanium material |
| US6398876B1 (en) * | 1998-12-22 | 2002-06-04 | Andritz—Patentverwaltungs-Gesellschaft m.b.H. | Process for pickling steel |
| JP2002525429A (ja) | 1998-09-11 | 2002-08-13 | ヘンケル・コマンディットゲゼルシャフト・アウフ・アクチエン | 無硝酸溶液を用いる電解酸洗い方法 |
| WO2002086199A2 (en) | 2001-04-24 | 2002-10-31 | Centro Sviluppo Materiali S.P.A. | Continuous electrolytic descaling of stainless steel |
| US6554908B1 (en) | 1999-05-03 | 2003-04-29 | Henkel Kommanditgesellschaft Auf Aktien | Process for pickling stainless steel in the absence of nitric acid and in the presence of chloride ions |
| WO2003052165A1 (en) | 2001-12-19 | 2003-06-26 | Centro Sviluppo Materiali S.P.A. | Process and plant for descaling, pickling and finishing/passivating stainless steel strips, and strips so obtainable |
| US6599371B2 (en) | 2001-04-09 | 2003-07-29 | Ak Steel Corporation | Hydrogen peroxide pickling scheme for silicon-containing electrical steel grades |
| US6645306B2 (en) | 2001-04-09 | 2003-11-11 | Ak Steel Corporation | Hydrogen peroxide pickling scheme for stainless steel grades |
| US20060076247A1 (en) * | 2002-10-15 | 2006-04-13 | Paolo Giordani | Pickling or brightening/passivating solution and process for steel and stainless steel |
| CN101165223A (zh) | 2007-08-15 | 2008-04-23 | 山西太钢不锈钢股份有限公司 | 一种不锈钢表面的酸洗方法 |
| US8128754B2 (en) | 2008-11-14 | 2012-03-06 | Ak Steel Properties, Inc. | Ferric pickling of silicon steel |
| TWI452181B (zh) | 2011-09-26 | 2014-09-11 | Ak Steel Properties Inc | 在氧化、電解酸浴中之不銹鋼酸漬法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000192300A (ja) * | 1998-12-22 | 2000-07-11 | Daido Steel Co Ltd | 鉄系金属線材の酸洗処理方法 |
-
2012
- 2012-09-26 HU HUE12775373A patent/HUE031817T2/en unknown
- 2012-09-26 JP JP2014532100A patent/JP5897717B2/ja not_active Expired - Fee Related
- 2012-09-26 MX MX2014003564A patent/MX355793B/es active IP Right Grant
- 2012-09-26 TW TW101135402A patent/TWI452181B/zh not_active IP Right Cessation
- 2012-09-26 KR KR1020197001988A patent/KR20190009437A/ko not_active Application Discontinuation
- 2012-09-26 PL PL12775373T patent/PL2761063T3/pl unknown
- 2012-09-26 RS RS20160862A patent/RS55232B1/sr unknown
- 2012-09-26 UA UAA201403616A patent/UA107061C2/uk unknown
- 2012-09-26 WO PCT/US2012/057191 patent/WO2013049103A1/en active Application Filing
- 2012-09-26 KR KR1020147011318A patent/KR20140069293A/ko active Application Filing
- 2012-09-26 EP EP12775373.9A patent/EP2761063B1/de active Active
- 2012-09-26 US US13/627,022 patent/US9580831B2/en active Active
- 2012-09-26 KR KR1020167002295A patent/KR20160022931A/ko active Application Filing
- 2012-09-26 BR BR112014007132A patent/BR112014007132A2/pt not_active Application Discontinuation
- 2012-09-26 CA CA2849304A patent/CA2849304C/en active Active
- 2012-09-26 CN CN201280046563.3A patent/CN103906864B/zh not_active Expired - Fee Related
- 2012-09-26 RU RU2014113442/02A patent/RU2583500C2/ru not_active IP Right Cessation
- 2012-09-26 AU AU2012316187A patent/AU2012316187B2/en not_active Ceased
- 2012-09-26 SI SI201230795A patent/SI2761063T1/sl unknown
- 2012-09-26 ES ES12775373.9T patent/ES2605452T3/es active Active
-
2014
- 2014-04-22 ZA ZA2014/02871A patent/ZA201402871B/en unknown
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2016
- 2016-11-30 HR HRP20161598TT patent/HRP20161598T1/hr unknown
Patent Citations (36)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2347742A (en) * | 1939-09-18 | 1944-05-02 | Rustless Iron & Steel Corp | Pickling process |
| US3043758A (en) * | 1958-12-23 | 1962-07-10 | Ruthner Othmar | Process of electrolytically pickling alloy steels |
| US3622478A (en) | 1960-11-14 | 1971-11-23 | Gen Electric | Continuous regeneration of ferric sulfate pickling bath |
| US4618379A (en) * | 1982-09-21 | 1986-10-21 | Roberto Bruno | Method for the continuous annealing of steel strips |
| US4711707A (en) | 1986-01-17 | 1987-12-08 | Agency Of Industrial Science & Technology | Method for removal of scale from hot rolled steel |
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Also Published As
| Publication number | Publication date |
|---|---|
| RU2583500C2 (ru) | 2016-05-10 |
| ZA201402871B (en) | 2015-12-23 |
| PL2761063T3 (pl) | 2017-03-31 |
| UA107061C2 (uk) | 2014-11-10 |
| MX2014003564A (es) | 2014-07-09 |
| JP5897717B2 (ja) | 2016-03-30 |
| MX355793B (es) | 2018-04-27 |
| RU2014113442A (ru) | 2015-11-10 |
| AU2012316187A1 (en) | 2014-04-10 |
| KR20140069293A (ko) | 2014-06-09 |
| KR20160022931A (ko) | 2016-03-02 |
| US20130074871A1 (en) | 2013-03-28 |
| KR20190009437A (ko) | 2019-01-28 |
| CA2849304C (en) | 2016-07-05 |
| BR112014007132A2 (pt) | 2017-04-04 |
| EP2761063A1 (de) | 2014-08-06 |
| WO2013049103A1 (en) | 2013-04-04 |
| CA2849304A1 (en) | 2013-04-04 |
| TW201319331A (zh) | 2013-05-16 |
| RS55232B1 (sr) | 2017-02-28 |
| JP2014526617A (ja) | 2014-10-06 |
| TWI452181B (zh) | 2014-09-11 |
| CN103906864B (zh) | 2017-01-18 |
| AU2012316187B2 (en) | 2015-09-24 |
| SI2761063T1 (sl) | 2017-01-31 |
| EP2761063B1 (de) | 2016-09-14 |
| HUE031817T2 (en) | 2017-08-28 |
| ES2605452T3 (es) | 2017-03-14 |
| HRP20161598T1 (hr) | 2016-12-30 |
| CN103906864A (zh) | 2014-07-02 |
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